Improvement in barrels for shot-guns



v1.3. TUBBS.

Barrel fnrShnt-Guns.

Patented March 23,1875.

W/T/VESSES.'

. adapted to be closed or JOEL B. TUBBS, OF WATERLOO, NEW YORK.

IMPROVEMENT iN BARRELS FOR SHOT-GUNS..

Specification forming part of Letters Patent No. Mvllbl), dated March 23, 1875; application le February 23, 1875. i

To all whom it may concer-n Be it known that I, JOEL B. TUBBs, of Waterloo, in the county of Seneca and State of New York, have invented certain new and useful Improvements in Method of Producing Concentration in Shot-Guns, and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings making a part of this application.

My invention has for its object to decrease the muzzle, and thereby produce concentration of the shot fired from, a sporting-gun, and it consists in providing the muzzle with an interiorly-arranged concentrating-ring, as will be hereinafter more fully set forth.

Previous to my invention the result sought has been accomplished in but two ways, so far as I am aware; one inode being to counterbore the barrels from the breech end up to Within a short distance of the muzzle, thus increasing the gage, except at the muzzle, the' other mode, which is applied to single-barrel guns only, consisting in the application to the exterior ofthe muzzle of a split-ring compress,

tightened by a suitable screw, whercby the muzzle is slightly contracted. Obvious objections exist in both these described methods, which are entirely overcome by my invention, which accomplishes .the object aimed at in a simple and economic manner.

In order that those skilled in the art may fully understand my invention, I will proceed to describe itmore fully, referring by letters to the accompanying drawings, in which- Flgure 1 represents an end or muzzle view of a section of a pair of barrels, and Fig. 2 a horlzontal section at the line w x of Fig. l.

Similar letters designate like parts in the two iigures.

A A represent a pair of barrels, and B the bore or muzzle, the barrel A being shown as eounterbored a short distance from the muzzle end, and fitted with a ring or re-enforce, B interiorly, which ring, as is clearly seen at Fig. 2, is of a smaller diameter or gage than the original bore. The lower edge of this ring B is ehambered ofi', so as to induce to the converging ot' the shot without forming an abrupt impediment. This ring, being placed within the muzzle, counterbored, as described, is brazed or otherwise permanently secured in position, and the operation is completed.

Of course the extent of the concentratingring, in length and diameter, may be varied according to judgment and circumstances, though I have found by experiment that, in the ordinary sportinggun, a ring of from threeeighti'ls to one-quarterot` an inch in length, and ot' such thickness as to decrease the original bore one gage, is calculated to produce goed results.

What I claim as new, and desire to secure by Letters Patent, is-

A shot-gun provided at its muzzle end with a concentrating-rin g, arranged Wi thin the bore, and secured against displacement, substan tially as and for the purposes hereinbefore set forth.

In testimony whereof I have hereunto set my hand and seal this 17th day oi' February, A. D. 1875.

JOEL B. TUBES. lL. s]

In presence of S. G. I-IADLEY, Guo. H. HULBUT. 

